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The application of solar distillation technique as a mean for olive mill wastewater management
Author(s) -
Jaradat A. Q.,
Gharaibeh S.,
Abu Irjei Mustafa
Publication year - 2018
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12308
Subject(s) - turbidity , chemical oxygen demand , chemistry , pulp and paper industry , distillation , wastewater , paper mill , phenols , biofuel , total organic carbon , residue (chemistry) , total dissolved solids , total suspended solids , environmental chemistry , environmental science , waste management , environmental engineering , effluent , chromatography , organic chemistry , oceanography , engineering , geology
The present study was conducted on a pilot scale level using a solar still unit to separate olive mill wastewater (OMW) into condensate and solid residue. The prevailing conditions inside the solar still, rates of distillation and a number of quality parameters for condensate [pH, electrical conductivity (EC), turbidity, chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen (TN) and total‐phenols] were evaluated to assess the system performance. The solid residue was evaluated as well for its utility as a potential biofuel. The condensate is acidic (pH 3.8), colourless, transparent and free of suspended solids. The turbidity and EC were reduced in the condensate by 100 and 99%, respectively, while the loads of COD, TOC, TN and T‐phenols were reduced by 90, 98, 99.9 and 99.96%, respectively. Almost 0.04% of initial total phenols found in OMW were recovered in the condensate. High calorific value (23.5 kJ/g) and combustible portion (84%) of solid residue suggests its applicability as a potential biofuel